a friend of mine trying to install a cd-rom on his Windows 3.1 must have done something to cause his system to now think he has a 5'" floppy instead of his 3". How can he get the computer back to saying he had a 3" A drive? On startup he gets a message there is an error in line 1 and line 2 in his config. sys file. On trying to open the config.sys, there is a flash, but it doesn't open. Any suggestions?