Internet Explorer 32 Bit not Starting

I am having intertainment problems in starting the 32 bit version of Internet Explorer 9 and may email client when NIS 19.9.0.9 is running.  When IE fails to start I also cannot bring up the NIS main window by clicking on the NIS desktop icon.  If I start the 64 bit version (I have a 64 bit system) all works normally (obviously no Norton Toolbar).

 

A reboot allows me to run everything normally.

 

Can anyone help?