you're missing the point; it's a bad script! not your memory.
IE allows all kinds of bad junk to run;
suggest you find/install Spywareblaster and update it.
add / update your host file via http://www.mvps.org/winhelp2002/hosts.htm
empty your cache, delete ALL temporary files (in the browser)
Yeah, I was going to say that the only time I've had those errors is when my computer was infected with something nasty. You might want to try HiJackThis and attach the log file to your next post in this thread.