If you are running ~1mhash on GPU mining @ the current difficulty it will take a while to solve a block. Remember this is not like regular mining where you submit shares, here you have to solve the whole block!
Did you specify the boinc install folder and data folder in gridcoin.conf ?
boincappfolder=C:\Program Files\Boinc\
boincdatafolder=C:\ProgramData\Boinc\
I haven't done that, I let Boinc install to the default. The only thing is I'm on win7 64 bit. Should I add that and change it to Program Files (x86)\Boinc\ ?
edit: nvm program data does exist. Added those lines changing to x86 for appfolder. Still no change =\