Java stopped working?

I'm not sure whats happened but java has stopped working on my computer. It was fine the other day however now java applets dont load, and when I click on java links on websites nothing happens. I have tried reinstalling java several times, and updating and it says it is all fine. Am not sure what to do?

[313 byte] By [super123xa] at [2007-10-2 17:06:18]
# 1
Unless you can say what changed in your computer to create the problem, we're also at a loss to assist in the resolution. Sorry.
ChuckBinga at 2007-7-13 18:20:53 > top of Java-index,Developer Tools,Debugging and Profiling Tool APIs...
# 2

Also it seems to only be internet explore where its not working, it seemes fine in Firefox.

And I havent changed anything, it was literally working one night, and not the next day. The only thing I done between then on the computer was run an AVG scan and an Ad-aware scan.

I'm now starting to think there might be something more sinister as Windows Media Player has also stopped working, coming up saying "An internal application error has occured" when I try and run it... Unfortunately I'm totally lost in these matters.

super123xa at 2007-7-13 18:20:53 > top of Java-index,Developer Tools,Debugging and Profiling Tool APIs...
# 3
try using a registry cleaner and thereafter reinstall java and media player
bankolea at 2007-7-13 18:20:53 > top of Java-index,Developer Tools,Debugging and Profiling Tool APIs...
# 4
Do you know any good free ones? I can only find trail ones.
super123xa at 2007-7-13 18:20:54 > top of Java-index,Developer Tools,Debugging and Profiling Tool APIs...