Do try calibrating as others have suggested.
The UltraSharp U2410 is an excellent monitor. It or the 2408 should work satisfactorily with your 2001FP in landscape+landscape mode (3520x1200 desktop).
My 2001FP is in portrait mode beside an UltraSharp 3007WFP (3760x1600 desktop).
i7-2600K, H70, P8P67-M Pro, 16 GiB, HD7950, SSD, 3 HD, Blu-ray, X-Fi Ti Pro, Antec P182, S75CF, 3007WFP+2001FP, RK-9000BR, MX518
i5-3570K, GeminII-S524, P8Z77-M Pro, 16 GiB, HD7770, SSD, 2 HD, Blu-ray, InifiniTV4, NSK2480, 55" TV; Asus UX32VD