Is this a correct summary: there's an occasional msvcrt crash when using some M-Audio interfaces with Reaper, with no obvious pattern in behavior causing it. It would be great to be able to narrow down the problem in some way, any pattern of behavior that triggers it.

Ok, I think I've got reproduction steps (but tried hard.. as it's annoying). I describe all the things I do, but some of them and perharps not related. The idea was to put some people on the driver (as I said I also don't think it's the culprit: unknown issue @ M-Audio + ok in 2.xx). Dub, billoon, can you try this ? - open an external audio editor (Audition 1.5 here) loop-play on some media - open the M-Audio control panel - open reaper (HEAVY project here) - arm some tracks (2 here) but just play - in M-Audio control panel, change the "input" gain of both armed tracks (i.e. in the 2nd tab, -10, consumer or +4db) - back to reaper (that still play) load another project while playing (another HEAVY one here) => reaper crashes (not systematically but quite often): schwa, Thanks for taking care. can I do something else ?

OK, tried the repro, didnt work here. Doesnt want to crash anymore. :) Anyway, found this in the dr watson log, theres a fault mentioned that might help???... *----> State Dump for Thread Id 0x53c <----* eax=00d21eff ebx=77c5f7a0 ecx=00000000 edx=02635d20 esi=0000656c edi=02635d20 eip=77c483b4 esp=00119294 ebp=001192a0 iopl=0 nv up ei ng nz na po nc cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000286 *** ERROR: Symbol file could not be found. Defaulted to export symbols for L:\WINDOWS\system32\msvcrt.dll - function: msvcrt!wcsxfrm 77c483a1 8bec mov ebp,esp 77c483a3 57 push edi 77c483a4 56 push esi 77c483a5 53 push ebx 77c483a6 8b750c mov esi,[ebp+0xc] 77c483a9 8b7d08 mov edi,[ebp+0x8] 77c483ac b0ff mov al,0xff 77c483ae 8bff mov edi,edi 77c483b0 0ac0 or al,al 77c483b2 742e jz msvcrt!wcsxfrm+0x150 (77c483e2) FAULT ->77c483b4 8a06 mov al,[esi] ds:0023:0000656c=?? 77c483b6 46 inc esi 77c483b7 8a27 mov ah,[edi] 77c483b9 47 inc edi 77c483ba 38c4 cmp ah,al 77c483bc 74f2 jz msvcrt!wcsxfrm+0x11e (77c483b0) 77c483be 2c41 sub al,0x41 77c483c0 3c1a cmp al,0x1a 77c483c2 1ac9 sbb cl,cl 77c483c4 80e120 and cl,0x20 77c483c7 02c1 add al,cl *----> Stack Back Trace <----* WARNING: Stack unwind information not available. Following frames may be wrong. *** WARNING: Unable to verify checksum for L:\Program Files\REAPERtest\Plugins\reaper_midi.dll *** ERROR: Symbol file could not be found. Defaulted to export symbols for L:\Program Files\REAPERtest\Plugins\reaper_midi.dll - ChildEBP RetAddr Args to Child 001192a0 77c4627d 02635d20 0000656c 00000000 msvcrt!wcsxfrm+0x122 001192b8 025f0f46 02635d20 0000656c 00d262ac msvcrt!stricmp+0x2f 02609fd4 00001000 00000fa0 00000008 00000000 reaper_midi+0x40f46

Ok. I can reproduce it quite easily, here. so, if there's something to try, let me know... [edit] same bug with "igonre reset msg" ticked or not

I havent got the msvcrt crash since the one i started the thread with, but i got 2 others last night. Couldnt repeat them either though. Just in case it helps ill post the pics... Here, i switched project tabs>add fx>double clicked a standard JS... Here, i just deleted some files from the media explorer...

if you're getting random crashes in lots of different places, there's a very strong chance there's something wrong with your RAM, your motherboard, or your windows install. or you're just running out of RAM - have you tried running some diagnostics to see how much physical RAM/address space you're using?

also are you running antivirus programs etc?

in that case track down a RAM testing tool (google for memtest86 i think). if that comes up clean i'd possibly suggest ghosting your audio machine and rebuilding it from scratch. could also be overclocking/temperature related, power supply (did you recently add any new hardware/pci cards? do you have a heater or aircon on the same circuit?), outside chance of a corrupt WAV file (does it only happen on one project?), or maybe some spyware or something has made its way to your machine. crashes in msvcrt.dll are almost always caused by something fairly low-level and the fact you're getting crashes in other stuff supports that idea.

I join the party. Having lots of those crashes since v3.06 (using vista32 and m-audio asio driver (ozone)). I'm sure this is a Reaper issue, screw the bad ram/low ram/overheating/antivirus idea, wasn't there before this version and happens only with R.

Got another crash last night. This is on a clean windows install. Only REAPER, Foobar and VLC installed. I cant repro it, but i had 2 tabs open, hit close reaper, selected no when asked to save both projects, reaper closed then i got this crash report. I hope this isnt hardware related, my computer is less than a year old. :(