How do I correct this Java Error....

I'm getting 2 different Java Errors while attempting to play on-line games. I can't figure out how to correct them. I have uninstalled and re-installed Java several times. Even installed updates 1-10. For Java 5.0.

The errors in question

Several Java Virtual Machines running in the same process.

and

Unable to load run time environment.

Any help would be greatly appreciated.

[417 byte] By [george8211a] at [2007-11-26 15:09:01]
# 1
http://forum.java.sun.com/thread.jspa?forumID=31&threadID=5124430
CeciNEstPasUnProgrammeura at 2007-7-8 8:59:29 > top of Java-index,Java Essentials,Java Programming...
# 2
are you using Internet Explorer 7? if so, i have the same problem before. I notice that if more than 1 tab is running Java program (or applets), I will have the same error message. If I open a new browser instead, the error does not exists.
khookha at 2007-7-8 8:59:29 > top of Java-index,Java Essentials,Java Programming...
# 3
Speak to the providers of these java games.
mlka at 2007-7-8 8:59:29 > top of Java-index,Java Essentials,Java Programming...