I have got Turbo C++ v3.0 installed on my system. I have this strange problem with my compiler. When I type lines of code and move up or down the lines of code, the lines of code will be highlighted, just like you hold down the shift key and moving up or down the typed lines in a text editor. Also, in the error window, I can't move up or down the error messages with my keyboard. I have to use my mouse to check for each error line. I don't face any such problem with the C compiler by the same company. This has me in a real fix. This install file works fine with ALL the PCs I have tried. I use this complier as the same compiler is used in college and I need to port my programs from college to home often. So guys, please don't suggest a different compiler for me, atleast for now. I face the same problem while using MASM as well. I will give you my specs of my system. PLEASE HELP OUT THIS POOR SOUL. My system specs: AMD Athlon 64 3200+ (Socket 939) MSI RS-480M2 motherboard 160 GB SATA Seagate HDD 512 MB DDR RAM (Hynix) Windows XP Professional Build 2600 I also tried by installing service packs, no use.