Hi there, I think I found a bug in PCEm, running Windows 3.1x on PCEm V8.1. When I run a DOS application within Windows 3.1x and change it from full-screen to windowed mode (CTRL+Enter), I get video corruption in the DOS application's window. If I edit the PIF file for the DOS application so that it …

ripa, this is excellent stuff, I will definitely give it a go. I hope your intention wasn't to solve my issue? I went ahead and got a half-decent Philips CRT monitor for nothing. How folks managed to stare at these things for hours on end I don't know (I should know though, I used to do it once upon …

@ripa Thank you for the excellent info. SDL blocking makes sense, it certainly seems to explain why the audio stutters so badly and gameplay speed is all over the place. Indeed, disabling double buffering improves things but you get the nasty tearing. If my TV was capable of NTSC 60Hz then I guess a …

That stacks up with my observations – DOSBox often goes with 720x400 @ 70Hz if I use the option fullresolution=original . I have yet to see it go with something other than 60 or 70Hz though. Anyway I have done more testing tonight and I think the answer is clear now: My CRT TV only understands 50Hz, …

OK that's interesting, thanks for the info so far. So the ideal solution would be to use a display that will happily switch to 70Hz (or whatever DOSBox asks for). Which a 50Hz PAL TV clearly cannot do. I think leileilol's got a point, using NTSC @ 60Hz might be no better. Will give it a go anyway, …

Hi guys, I have set up a PC for running emulators. It's way overkill for the task but it's what I had in spare parts: • Intel DP67BA mainboard • Intel Core i7-2600 3.4 GHz CPU • 4GB DDR3 1333 RAM • Onboard sound • Dell GeForce 9300 GE PCI-E video card • Windows XP SP3 fresh install + updates • …