Problem Installing CUDA on Ubuntu 14.04

Please let me know if you have suggestions as to how to solve this problem:
./deviceQuery
./deviceQuery Starting…

CUDA Device Query (Runtime API) version (CUDART static linking)

cudaGetDeviceCount returned 38
-> no CUDA-capable device is detected
Result = FAIL
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lspci | grep -i nvidia
01:00.0 VGA compatible controller: NVIDIA Corporation G92GLM [Quadro FX 3800M] (rev a2)
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cat /proc/driver/nvidia/version
NVRM version: NVIDIA UNIX x86_64 Kernel Module 340.65 Tue Dec 2 09:50:34 PST 2014
GCC version: gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
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ls -al /dev/nvidia*
crw-rw-rw- 1 root root 195, 0 Dec 23 08:47 /dev/nvidia0
crw-rw-rw- 1 root root 195, 255 Dec 23 08:47 /dev/nvidiactl
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lsmod | grep nvidia
nvidia 10557103 41
drm 303102 2 nvidia
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ls -l /usr/bin/nvidia*
lrwxrwxrwx 1 root root 52 Dec 22 13:52 /usr/bin/nvidia-bug-report.sh -> /etc/alternatives/x86_64-linux-gnu_nvidia_bug_report
lrwxrwxrwx 1 root root 58 Dec 22 13:52 /usr/bin/nvidia-cuda-mps-control -> /etc/alternatives/x86_64-linux-gnu_nvidia-cuda-mps-control
lrwxrwxrwx 1 root root 57 Dec 22 13:52 /usr/bin/nvidia-cuda-mps-server -> /etc/alternatives/x86_64-linux-gnu_nvidia-cuda-mps-server
lrwxrwxrwx 1 root root 51 Dec 22 13:52 /usr/bin/nvidia-debugdump -> /etc/alternatives/x86_64-linux-gnu_nvidia-debugdump
-rwxr-xr-x 1 root root 270 Sep 4 13:01 /usr/bin/nvidia-detector
-rwsr-sr-x 1 root root 27024 Aug 1 14:17 /usr/bin/nvidia-modprobe
lrwxrwxrwx 1 root root 54 Dec 22 13:52 /usr/bin/nvidia-persistenced -> /etc/alternatives/x86_64-linux-gnu_nvidia_persistenced
-rwxr-xr-x 1 root root 1847048 Aug 1 14:17 /usr/bin/nvidia-settings
lrwxrwxrwx 1 root root 45 Dec 22 13:52 /usr/bin/nvidia-smi -> /etc/alternatives/x86_64-linux-gnu_nvidia_smi
lrwxrwxrwx 1 root root 49 Dec 22 13:52 /usr/bin/nvidia-xconfig -> /etc/alternatives/x86_64-linux-gnu_nvidia_xconfig