While it's only been a couple of days since making this change, the above seems to have solved the problem I was experiencing. I no longer have to run in compatibility mode in IE 10 either.The memory requirements can be higher for compressed actions with software such as PHPMyAdmin on CentOS 6.x. I have seen once instance where increasing the "Max cPanel Process Memory" via "WHM Home » Server Configuration » Tweak Settings" resolved a similar issue to what's been reported. I encourage anyone else experiencing this issue to open a support ticket and provide the ticket number here so we can report back any details that we find, and open an internal case if necessary.