[mistwang]

Originally Posted by dlewis23

I sent you a PM with my mod_rewrite rules. Not sure if you need anything else.

That's in document root .htaccess, right?
Better sending us a the whole .htaccess file, if there is .htaccess in parent directory, send us that as well.
It also may be related to mod_security rules if used. send us a copy of your mod_security rule.
Last, we need the URL that should be rewritten but broken under 4.1RC5.
If there is anything that may help replicating your problem in our lab, please also let us know.
You can send those information to bug@litespeed...

Also I would like to add, that I can't upload any files larger then 1GB in size. When I select them and start the upload, the uploader just sits doing nothing. Any idea why this would happen?

Right now, LiteSpeed has hard limit of 1GB for HTTP request body, we will bump it up to around 2GB.