Originally Posted by apricot
It frequently shows errors with meds interaction check, aparently, the program is not able to get to internet for interaction check, but all other programs get access to internet.

I would try changing the DNS provider. What could be happening is that the DNS entries are bad on your ISP's DNS Servers or your computers have cached the wrong address. I would flush them first then try changing the provider.

Start>Run>type "cmd">type "ipconfig /flush"

OpenDNS: 208.67.222.222/208.67.220.220
Google Public DNS: 8.8.8.8/8.8.4.4

Originally Posted by apricot
Sometimes it shows "out of memory". Sometimes it showes "numerous errors happen" and shuts down. Sometimes ir just shuts down.

You might want to list the hardware specs of your main computer/server. As many above have suggested, try upgrading to the new AC. A lot of stuff has been improved.

Originally Posted by apricot
I only have 7 computers on peer-to-peer network, with AC located on dedicated computer, sometimes I reduce number of computers on network to 6 computers, but it doesnt really help. And AC has been very slow lately.

It sounds like you are limited by your hardware rather than AC itself. As Bert suggested above, try running AC on the main computer and if it is slow, it is definitely the main computer. I know AC says you can use off-the-shelf desktops as a main computer but the reality is that it works, just not very well.

Originally Posted by apricot
If these crashing issues dont resolve I am seriouly considering changing my EMR because this AC crashing issues interfere with my job performance.

Try hiring an IT Pro to check out your system or ping the Guardian Angels to check things out.
Or try the Amazing Charts Certified IT Support Companies list to find Certified IT Support in your area. I can also take a look if you are unable to find someone. Send me a PM in that case.