Imports

I'm having a problem with my imports... the compiler is not finding the .class. I don't know what is going on, because not long time ago it was working normaly...Does anybody know what may be causing this problem?Thanks....
[253 byte] By [lupe306] at [2007-9-26 4:37:32]
# 1
Probably CLASSPATH...
schapel at 2007-6-29 17:56:29 > top of Java-index,Desktop,Runtime Environment...