to solve this problem, you must follow the following steps:
1. install OS
2. install 4-in-1 driver
(this is the driver to upgrade motherboard in order to support TNT video chip)
3. install TNT video dirver
1. install OS
2. install 4-in-1 driver
(this is the driver to upgrade motherboard in order to support TNT video chip)
3. install TNT video dirver