sl161011@silver.bacs.indiana.edu (Kevin Clendenien) (01/21/89)
Help! I have a 520ST with an RF jack in back. I have a monochrome monitor, but use a color tv hooked to the RF jack as a color monitor. Here's my problem. When I have the monochrome monitor hooked up, the computer works like a dream, but when I try to use color, I have some problems. If I put in a disk that would normally go to the desk top, and then turn on the computer (in the color mode) the desk top comes up. If I move the mouse up to the menu bar, activating a menu, the machine makes like it is resetting. I get no bombs, and the machine finally just quits with a totally blank screen. Pressing reset does no good. If I move the mouse to the menu bar, without activating a menu, nothing happens. If I double click on a drive icon, the problem mentioned above happens. If I single click on a drive icon, the icon in highlighted, and no problem occurs. If I just look at the compter without moving the mouse, eventually, the above problem occurs, although at no discernable frequency. Now, if I put a game that autoboots into the machine and turn it on, everything works fine (even in color mode). So, can anyone put forth a theory as to what might be ailing my machine. It works fine in mono mode, or in color mode, if the disk bypasses the desk top with an auto boot. It does not work in color mode, when the desk top is accessed, although no bombs are generated. I've ruled out problems with RAM, since things work fine in mono mode, and color mode with an autoboot. Could I have a ROM problem? Would a ROM problem not generate any bombs? Is there anyway I can test the ROM (from mono mode)? If you suggest loose chips as a possible source for the problem, could you advance a theory as to how the loose chips might be causing the problem? Help! Any "guesses" would be greatly appreciated. -------------------------------------------------------------------------- sl161011@silver.UUCP Kevin B. Clendenien --------------------------------------------------------------------------