A1:The I.E. Cache may cause this issue.
For Internet Explorer
This how to will give you the setps to delete all or individual sets of files.
01. Open Internet Explorer.
02.
    IE 8: From the tools menu choose Internet Options.
    IE 9: In the upper right corner, click the small gear icon (to the right of the star icon) and choose internet Options
03. On the General tab, under Browsing history, click Delete.
04. Un-check the Preserve Favorites website data box.
05. Check the Temporary Internet files, Cookies, and History boxse.
06. The Form data, Passwords, and inPrivate Filtering data boxes may be left un-checked. you can check them to delete this data if you so choose.
07. Click Delete.
08. When finished, click ok to return to your Internet Explorer window.
09. Close the Internet Explorer window and reopen.