cc.rob@ut-ngp.UUCP (Kevin Mar) (06/19/87)
I have a bizarre problem with my Apple IIc. I have run "Master Diagnostics IIc" on it several times but it checks out on that program. Anyway, after I run the computer a while and I'm in double hi-res graphics, for example, "Dazzle Draw", the screen starts to flash and mess up with a lot of snow and a totally illegible screen. But when it accesses the disk drive while the screen is messing up, the screen comes back clear and legible. This problem only happens after I've been using it a while. Is this a heat problem and does anyone else have this happen? Or is it just my computer?? Any suggestions? Thanks in advance for any help. -- PHYSICS LIMITED AND CUTETH WATCHERS ANONYMOUS Xavier Jones fungi@sleepy.cc.utexas.edu cc.rob@ut-ngp.UUCP
cc.rob@ut-ngp.UUCP (Xavier Jones) (06/19/87)
Sorry for last problem message. I have a bizarre problem with my Apple IIc. I have run "master Diagnostics IIc" on it and have had no problems reported. However, if I use it a while in double hi-res graphics, the screen begins to flicker and snow and I lose a legible screen. The funny thing is, when the disk drive accesses, the screen becomes legible again. And only while the drive accesses is the screen legible. Is this a heat problem?? Does anyone else have this problem? Any suggestions? Thanks in advance for any help. -- PHYSICS LIMITED AND CUTETH WATCHERS ANONYMOUS Xavier Jones fungi@sleepy.cc.utexas.edu cc.rob@ut-ngp.UUCP
eww@OBERON.LCS.MIT.EDU (Wes Williams) (06/21/87)
You may want to look at the back side of the machine..... 110 line voltages or screen (crt) leads intertwined with disk drive connections have been known to do strange things to screen readouts.