air conditioner won't work at idle

Have a 2000 Golf with 110K, no problems to date. After sitting for two months we start car back up and now the A/C will not work at idle. Compressor starts up once car reaches 2200 RPM but will shut off if idle drops below that number.

Related issue, car idles low now (750 RPM on diag) and cruise control will not work. Could this all be idle related, maybe vacuum?

might have a bad throttle body.