Drc 0029 errors and details

hi,
i am new to orcad 16.3 .when i try to check DRC for my schematics i am getting the following error:
WARNING: [DRC0006] Net has fewer than two connections In 4F-1
SCHEMATIC1, PAGE4 (16.40, 8.00)
WARNING: [DRC0006] Net has fewer than two connections In 4F1
SCHEMATIC1, PAGE4 (11.80, 9.90)
ERROR: [DRC0029] Bus has no name and therefore defines no signals. N1166884
SCHEMATIC1, PAGE1 (10.80, 10.40)
ERROR: [DRC0029] Bus has no name and therefore defines no signals. N1166596
SCHEMATIC1, PAGE1 (11.20, 10.30)
ERROR: [DRC0029] Bus has no name and therefore defines no signals. N1167656
SCHEMATIC1, PAGE1 (5.40, 4.20)
ERROR: [DRC0029] Bus has no name and therefore defines no signals. N2334894
SCHEMATIC1, PAGE2 (11.20, 10.60)
ERROR: [DRC0029] Bus has no name and therefore defines no signals. N2335334
SCHEMATIC1, PAGE2 (4.40, 5.80)
ERROR: [DRC0029] Bus has no name and therefore defines no signals. N2335084


please help me how to get the bug dissolved.please

once delet the net and reconnect check the drc and then also its comming means..some ware u are no given the net name clearly....

i should get the net list in orcad capture or in allegro design cis?

you can use any one orcad capture or allegro design cis not a problem

how to name the buses i am not getting it.
please suggest me any way to learn orcad...

suggest any pdf files or books?