Hello, everybody. This is my first post, so hopefully it follows the guidelines! I'm having problems with Undertale. There is a Demo version that used GameMaker 8; it runs just fine on the old Sony 2001 VAIO. But the "Full" version does not run- it simply gives the Windows XP message about "experiencing problems/must shut down/sorry." I tried to figure out the problem and contacted the Undertale website, but that was a dead end. They simply said to contact this site, so...here I am. The Sony has the following specs (this is from memory so it's not 100% complete): Sony VAIO 2001 Model PCG-SRX77(UC) laptop. Windows XP with Service Packs 1 and 3 installed. Home Edition, 5.1 256MB RAM with 768MB "virtual memory." Processor: Intel(R) Pentium(R)3 Mobile CPU at 800MHz. DirectX: 9.0c (4.09.0000.0904). Video RAM: A bit hard to say even with DXDIAG, but seems to be 4MB. Cannot be adjusted through Phoenix BIOS, like most laptops. Resolution: 1024h x 768v, usually run in 16-Bit color but can be adjusted to 24-Bit or down to 8-Bit (256 colors). Sound: Intel(R) Integrated Audio. There is plenty of room in the "D" drive, where the game is stored. The "C" drive has 9.5GB to spare. I've tried using 3D-Analyzer and adding the D3D9.DLL file, but so far that hasn't worked although maybe I haven't checked the right boxes. The key here seems to be the difference between the GameMaker 8 and GameMaker Studio versions. What does Studio need or takes that 8 doesn't? For all I know a simple adjustment with a Hex Editor or a missing OS file may be the problem. The idea is to get the game running on this device, so please limit any responses to how one might go about doing this. Thank you.