Try changing the Limited User account to a Power User:
1. Right-click My Computer and click Manage
2. In Computer Management, double-click Local Users and Groups, and click Groups
3. Right-click Power Users and click Properties
4. In the Power User Properties dialog box, click Add
5. Type the user name and click Check Names (you should see the computer name followed by the user name appear in the box)
6. Click OK and OK and close Computer Management
7. Restart your computer
You should be able to use IE with the user account that you have now changed to a Power User (essentially, a power user can do almost everything an Administrator can do but change an Administrator's settings).
Let us know how it goes.
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