I have internet explorer 6 and windows xp. Internet explorer keeps jamming up, and i have run lots of scans and nothing has come up. It frequently comes up with 'Acrobat IEHelper: iexplorer.exe- Application Error' the instruction at "0x017e494e" referenced memory at "0x0000049b". The memory could not be read. Click on OK to terminate program. Any help here would be great, it's really irritating.