Dell OptiPlex 755 User's Guide - Page 334

3 Click Properties→ Tools→ Check Now. 4 Click Scan for and attempt recovery of bad sectors and click Start. Windows Vista: 1 Click Start and click Computer. 2 Right-click Local Disk C:. 3 Click Properties→ Tools→ Check Now. The User Account Control window may appear. If you are an administrator on the computer, click Continue; otherwise, contact your administrator to continue the desired action. 4 Follow the instructions on the screen. E-Mail, Modem, and Internet Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTE: Connect the modem to an analog telephone jack only. The modem does not operate while it is connected to a digital telephone network. NOTE: Do not plug a telephone cable into the network adapter connector (see the I/O connector information for your computer). C H E C K T H E M I C R O S O F T O U T L O O K ® E X P R E S S S E C U R I T Y S E T T I N G S - If you cannot open your e-mail attachments: 1 In Outlook Express, click Tools→ Options→ Security. 2 Click Do not allow attachments to remove the checkmark, as needed. CHECK THE TELEPHONE LINE CONNECTION CHECK THE TELEPHONE JACK CONNECT THE MODEM DIRECTLY TO THE TELEPHONE WALL JACK USE A DIFFERENT TELEPHONE LINE - • Verify that the telephone line is connected to the jack on the modem (the jack has either a green label or a connector- shaped icon next to it). • Ensure that you hear a click when you insert the telephone line connector into the modem. • Disconnect the telephone line from the modem and connect it to a telephone, then listen for a dial tone. • If you have other telephone devices sharing the line, such as an answering machine, fax machine, surge protector, or line splitter, bypass them and use the telephone to connect the modem directly to the telephone wall jack. If you are using a line that is 3 meters (10 feet) or more in length, try a shorter one. RUN THE MODEM DIAGNOSTIC TOOL - Windows XP: 1 Click Start→ All Programs→ Modem Helper. 2 Follow the instructions on the screen to identify and resolve modem problems. Modem Helper is not available on certain computers. 334 Solving Problems