Dexcom software glitch g4

Have had trouble syncing off and on since new g4 software

have uninstalled and reinslalled several times, and reinstalled the new g4 dex driver,

now it is noting the receiver attached, but it is only syncing one percent of the data, then stopping at that which is from nov 6 several weeks ago.

Unable to get the last two weeks numbers!! I wish they had customer support on the weekends and at night, like omnipod does. I suppose not that much of an emergency as when the pod screws up.

Anyone know of anything else to try?

Crappy windows 7 pc which I bought specifically for this purpose!!

Thanks Natalie