IE 7 is in the Release Candidate 1 phase. This is the final Beta phase before Final release. There are some sites and programs that will not support IE 7 as long as it is still in Beta testing. This is solved with a little (very small) program that makes those sites and programs think IE 7 is IE 6. Sounds nut, but, it works. I use it with IE 7 and it works great. I recomend you download and use IE 7. You will love it. You will have to find and learn the differences of you current IE browser.
Here is the programs to fool the ones that don't support IE 7 yet. Select the "Internet Explorer 6" link and then click OK for the next to boxes that pop up. If you install this after downloading IE 7 then restart the computer after downloading this program so it will work properly.
http://www.fiddlertool.com/useragent.aspx
To clean your computer do the following:
Go to Start>All Programs>Accessories>System Tools>Disk Cleanup. Run this program. Put a check in every box(even if is says it is empty) and then click OK.
Now follow the same path and select Disk Defragment>run this and defragment your hard drive.
Now do this: Exit all running programs including those in the Sysem Tray (by the clock) and including your Browser. Go to Start>Run>type: %temp%>click OK>in this window go to the menu bar to EDIT and click Select All>you should have noticed the menu expand to show the delete option. Click it and delete everything.
Here is what you should do at least once a week: Go to Tools>Internet Options>General tab (it should open on this tab)>Delete Cookies and Temp Files buttons>go to Clear Hisory button and click it. Click Apply then OK.
Once you have IE 7 and get to the General Tab then go to the Browsing History and click the delete button. Another window will open and you will then delete the Cookies, Temp Files and History.