QQ flying screen is a little small. The graphics card is gt730d5 What is the reason?

The reason and solutions for play game cards are as follows:

1. Whether the graphics card driver is damaged, uninstall the original driver and install the driver in official website or with its own driver.

2, the graphics card itself, memory damage, graphics card circuit or chip damage, leading to failure, if possible, replace another graphics card for troubleshooting.

3, network problems, connect the graphics card to other computers with good networks.

4. Due to insufficient power supply of PCI slot.