Question : USB problem dell Inspiron 1545 USB problem

I have a Dell inspiron 1545 and just today I started seeing a popup warning message on the task bar indicating that a "USB Device is not recognized" even though I do not have anything connected to a USB port.  It tells me to click on the message to see the offending device, but then the message shows an empty window.  

This message pops up around every 30-60 seconds and it is driving me crazy.

I have tried system restore to no avail: My next approach is to re-install windows 7.

Any ideas on isolating the problem would be most appreciated.

Answer : USB problem dell Inspiron 1545 USB problem

yes, outlook 2007 has the ability to see more than 2gb pst file size.

yours probably was corrupt and needed to be fixed.
you can go find the file and fix it via these instructions:
http://office.microsoft.com/en-us/outlook-help/repair-an-ost-or-pst-file-in-outlook-HA001056300.aspx

once fixed you can either attach it as 2nd pst or import all it's information into your current pst via the Import feature found under the file menu.