Calendar Reminder Issue

[kjar211]

I have been setting up the google calendar that came with the htc evo and I noticed that when I set a reminder (ex) 12 hrs or 24 hrs it never reminds me. If I set the 3 hr reminder than it works. I tried pc sync and I tried manually putting it in calendar. Am i doing something wrong. It works if i set a reminder for 3 hrs or less otherwise I dont get a reminder at all. Thanks I really need the help