Thanks for the reply - I am running VWS 14p98 and my database timer was/is set to 30 minutes, but WU was sill getting updates about every 5 minutes prior to my earlier post..
Based on your message I went back and checked the database timer, to confirm its setting.. and though I didn't change it, my WU updates are now showing up every 30 minutes.. the only other thing I had changed yesterday was turning off "Rapid Fire", but I wouldn't think that would have made a difference..
Anyway, it is working properly now.. thanks for your help.