I have installed 6.6.2 about half a dozen of time, from 6.6.0. But every time it does not seem to run correctly.
Not all projects are displayed in Tasks tab (see example enclosed),and those that are don't show that they are running; Projects & Messages tabs nothing is displayed.

I have a DELL XPS 420 with:
CPU: Q6600 @ 2.40GHz
Ram: 4GB
GPU: 8800GT
OS: Win Vista Ultimate 64bit SP1

Have tried installing under both nvidia 180.48 & 181.20 64bit drivers.
This is the first version that I have been unable to use.
Does anyone have a idea what my problem is?

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MAIN PC:
Q6600 @ 2.40GHz - Windows 7-64Bit 4GB RAM - BOINC 6.6.38 Win64 - 9800GX2 190.38
NETBOOK:
N280 @ 1.66GHz - Windows 7-32Bit 1GB RAM - BOINC 6.6.38 Win32

...
Does anyone have a idea what my problem is?

You are trying to use a Beta version which has serious bugs.

If you want to test and ennumerate the bugs for the developers to work on, then go ahead.

If you want to run science applications in a stable BOINC environment, use an earlier version.

I tried 6.6.2 on a single processor w/ no cuda.

It loaded about 30 hrs worth of 1 app (24 wu's) and was asking for more.
Told it "no new work" for that app and it started to download a dozen wu's
of another app.

Seems it could have been trying to settle up (even out) the dept across
all of the apps at once.

It also left several idle processes running when switching tasks.

Rolled back to 6.6.0 and everything is good.