"Recently accessed" menu not collecting recently access item

My "recently accessed" menu no longer collects recently accessed items. Nothing I access from a TLB menu gets added to the "recently accessed" menu.

I tried adding a second "recently accessed" menu. It also did not work.

I first noticed the problem using TLB 4.2.5. I updated to TLB 4.3 and the problem still exists.

The system is an XP SP3+ system.

Ideas?