Juz want to ask,i try to install the latest Google Chrome Browser but it shows 'install error'?can some1 tell me why?

My Computer
- Computer Manufacturer/Model Number
- Acer Aspire 4520
- OS
- Windows 7 Ultimate x86/Ubuntu 10.10
- Memory
- 2.5 GB
- Graphics Card(s)
- Nvidia GeForce 7000M