Hi there,
In order to check if the problem is BullGuard related and, if so, which exact BullGuard plugin causes the issue, here is what I recommend:
1. Double-click on the BullGuard icon in the System Tray and open the application.
2. Click on the Antivirus button twice and turn off the On-Access Protection, by clicking on the top button (the one that says Antivirus is active).
3. Check if the issue persists.
4. Click on the Firewall button twice and turn off that plugin, by clicking on the top button (the one that says Firewall is active).
5. Test if the problem is still there.
6. Click on the Spamfilter button twice and disable the plugin, by clicking on the top button (the one that says Spamfilter is active).
7. Check if the problem persists.
8. Click on the Gaming button twice and turn it off , by clicking on the top button (the one that says Game monitor is active).
9. Check if the problem persists.
10. Right-click the BullGuard icon in the System Tray and select "Close".
11. Test if the problem is still there.
Also, very important, I recommend that after taking these steps you re-enable BullGuard from the Start > All Programs list and turn back on the Antivirus, Spamfilter and Firewall plugins, for your machine's protection.
Let me know if the problem si caused by BullGuard, and, if so, by what exact plugin.
Cheers!